Advanced

Pyrocatechol as a surface capping molecule on raffle TiO2 (110)

Syres, K. L.; Thomas, A. G.; Cant, D. J. H.; Hardman, S. J. O. and Preobrajenski, Alexei LU (2012) In Surface Science 606(3-4). p.273-277
Abstract
A 'cap and dip' method of adsorbing ruthenium di-2,2'-bipyridy1-4,4'-dicarboxylic acid diisocyanate (N3 dye) on a rutile TiO2 (110) surface was investigated using pyrocatechol as a capping molecule. This method involves cleaning the rutile surface in ultra-high vacuum (UHV), depositing pyrocatechol onto the surface to 'cap' the adsorption sites, removing from vacuum, 'dipping' in an N3 dye solution and returning to vacuum. Photoemission measurements following the return of the crystal to vacuum suggest that the pyrocatechol keeps the surface free from contamination on exposure to atmosphere. Photoemission spectra also indicate that the pyrocatechol capping molecules are replaced by the N3 dye in solution and that the N3 dye is adsorbed... (More)
A 'cap and dip' method of adsorbing ruthenium di-2,2'-bipyridy1-4,4'-dicarboxylic acid diisocyanate (N3 dye) on a rutile TiO2 (110) surface was investigated using pyrocatechol as a capping molecule. This method involves cleaning the rutile surface in ultra-high vacuum (UHV), depositing pyrocatechol onto the surface to 'cap' the adsorption sites, removing from vacuum, 'dipping' in an N3 dye solution and returning to vacuum. Photoemission measurements following the return of the crystal to vacuum suggest that the pyrocatechol keeps the surface free from contamination on exposure to atmosphere. Photoemission spectra also indicate that the pyrocatechol capping molecules are replaced by the N3 dye in solution and that the N3 dye is adsorbed intact on the nitile TiO2 (110) surface. This technique may allow other large molecules, which are thermally unstable to evaporation in UHV, to be easily deposited onto TiO2 surfaces. (C) 2011 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Photoemission, Titanium dioxide, Single crystal, Pyrocatechol, Capping, N3 dye
in
Surface Science
volume
606
issue
3-4
pages
273 - 277
publisher
Elsevier
external identifiers
  • wos:000300458600026
  • scopus:84855446169
ISSN
0039-6028
DOI
10.1016/j.susc.2011.10.005
language
English
LU publication?
yes
id
4a55e61f-ad91-4abf-88e2-6fca8aec3e1a (old id 2384442)
date added to LUP
2012-03-30 14:27:57
date last changed
2017-09-24 03:49:34
@article{4a55e61f-ad91-4abf-88e2-6fca8aec3e1a,
  abstract     = {A 'cap and dip' method of adsorbing ruthenium di-2,2'-bipyridy1-4,4'-dicarboxylic acid diisocyanate (N3 dye) on a rutile TiO2 (110) surface was investigated using pyrocatechol as a capping molecule. This method involves cleaning the rutile surface in ultra-high vacuum (UHV), depositing pyrocatechol onto the surface to 'cap' the adsorption sites, removing from vacuum, 'dipping' in an N3 dye solution and returning to vacuum. Photoemission measurements following the return of the crystal to vacuum suggest that the pyrocatechol keeps the surface free from contamination on exposure to atmosphere. Photoemission spectra also indicate that the pyrocatechol capping molecules are replaced by the N3 dye in solution and that the N3 dye is adsorbed intact on the nitile TiO2 (110) surface. This technique may allow other large molecules, which are thermally unstable to evaporation in UHV, to be easily deposited onto TiO2 surfaces. (C) 2011 Elsevier B.V. All rights reserved.},
  author       = {Syres, K. L. and Thomas, A. G. and Cant, D. J. H. and Hardman, S. J. O. and Preobrajenski, Alexei},
  issn         = {0039-6028},
  keyword      = {Photoemission,Titanium dioxide,Single crystal,Pyrocatechol,Capping,N3 dye},
  language     = {eng},
  number       = {3-4},
  pages        = {273--277},
  publisher    = {Elsevier},
  series       = {Surface Science},
  title        = {Pyrocatechol as a surface capping molecule on raffle TiO2 (110)},
  url          = {http://dx.doi.org/10.1016/j.susc.2011.10.005},
  volume       = {606},
  year         = {2012},
}